In a data warehouse,_____ means collecting data from a variety of sources and converting it into a format that can be used in transformation processing.
A) extraction
B) transformation
C) loading
D) aggregation
Correct Answer:
Verified
Q47: In a relational model,when a primary key
Q49: _ is information about data-its content,quality,condition,origin,and other
Q50: The _ component is responsible for data
Q50: A _ is a collection of data
Q52: The _ component of a database management
Q53: A(n) _ operation pares down a table
Q54: The _ component of a database management
Q55: The _ component of a database management
Q56: _ is information in its original form.
A)
Q61: Data warehouses are sometimes called hypercubes because
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